LETTERS AND ANSWERSBr Med J 1944; 2 doi: https://doi.org/10.1136/bmj.2.4361.198 (Published 05 August 1944) Cite this as: Br Med J 1944;2:198
Log in using your username and password
Log in through your institution
Register for a free trial to thebmj.com to receive unlimited access to all content on thebmj.com for 14 days.
Sign up for a free trial